On This Day

What Happened in December 1582

Historical Events


Gregory Conquers Julius CaesarGregory Conquers Julius Caesar

Dec 10 France begins use of Gregorian calendar
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Pope Gregory XIII with the calendar that was to make his name
Pope Gregory XIII with the calendar that was to make his name
  • Dec 14 Zealand, Brabant Netherlands adopt Gregorian calendar, tomorrow is 12/25
  • Dec 15 Leidse university names Rembert Dodoens professor of botany and medicine
  • Dec 15 Spanish Netherlands, Denmark and Norway adopt the Gregorian calendar
  • Dec 21 Flanders adopts Gregorian calendar, tomorrow is Jan 1 1583
  • Dec 25 Zealand and Brabant adopts Gregorian calendar, yesterday was Dec 14th

Famous Birthdays

  • Dec 23 Severo Bonini, Italian composer and monk, born in Florence (d. 1663)

Famous Deaths

  • Dec 11 Fernando Alvarez de Toledo, Spanish noble and diplomat (governor of the Netherlands (1567–1573)), dies at about 75